2024 ICD-10-CM Diagnosis Code I1A.0

by

Resistant hypertension

  • I1A.0 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • ICD-10-CM I1A.0 is a new 2024 ICD-10-CM code that became effective on October 1, 2023.
  • This is the American ICD-10-CM version of I1A.0 – other international versions of ICD-10 I1A.0 may differ.

Applicable To

  • Apparent treatment resistant hypertension
  • Treatment resistant hypertension
  • True resistant hypertension

Code First

  • specific type of existing hypertension, if known, such as:
  • essential hypertension (I10)
  • secondary hypertension (I15.-)

The following code(s) above I1A.0 contain annotation back-references

 that may be applicable to I1A.0:

  • I00-I99  Diseases of the circulatory system
  • I10-I1A  Hypertensive diseases

ICD-10-CM I1A.0 is grouped within Diagnostic Related Group(s) (MS-DRG v41.0):

  • 304 Hypertension with mcc
  • 305 Hypertension without mcc

Code History

  • 2024 (effective 10/1/2023): New code

Diagnosis Index entries containing back-references to I1A.0:

  • Hypertension, hypertensive (accelerated) (benign) (essential) (idiopathic) (malignant) (systemic) I10
    • resistant I1A.0 (apparent treatment) (treatment) (true)